Polycarbonate molding compounds containing a special talc

US7105592B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Holger Warth · Sha Tin, CN
• Andreas Seidel · Dormagen, DE
• Thomas Eckel · Dormagen, DE
• Dieter Wittmann · Leverkusen, DE
• Bernd Keller · Lompoc, US

Key dates

• Filing date: Dec 12, 2000
• Grant date: Sep 12, 2006
• Expiry date: Dec 12, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L55/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermoplastic molding composition comprising polycarbonate resin, at least one impact modifier and highly pure talc is disclosed. The talc is characterized in that it contains Al2O3 in an amount of less than 1% relative to the weight of said talc. The composition that features high toughness, good processability and low coefficient of thermal expansion is suitable for the manufacture of exterior parts of vehicles.